*{
    margin:0;
    padding:0
  }
  .todo {
    width: 400px;
    margin: 20px auto;
  }
  .title{
    text-align: center;
    padding:10px 0;
    background:#aaaaaa;
  }
  .todo-con{
    display: flex;
    justify-content: center;
    align-items: center;
    padding:30px 10px;
    background:#eeeeee;
  }
  input {
    width: 300px;
    height: 32px;
  }
  button {
    height: 32px;
    width: 80px;
    margin-left:20px;
    background:#ffffff;
    color:red;
  }
  ul, li{
    list-style: none;
  }
  .item{
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom:10px;
  }
  .list{
    padding:10px;
    border-radius: 10px;
    border:1px solid #dddddd;
  }
  .btn{
    cursor: pointer;
  }